Lighting fixture



April 11, 1939. F, wmKLER 2,154,296

LIGHTING FIXTURE Filed Sept. 3, 1937 WITNESSES:

INVENTOR Frederic. Q Win k/e r.

' ATTO EY LIGHTING FIXTURE Frederic C. Winkler, Lakewood, Ohio, assignor to Westinghouse Electric & Manufacturing Company, East Pittsburgh, Pa., a corporation of was PATENT OFFICE Pennsylvania Application September 3, 1 937,Serial No. 162,255

' ture'and large numbers of units aroused and usually must be installed in a limited time. Consequently, the most desirable unit is one of low firstcostand one which may be installed quickly without the use of tools. and; highly skilled labor.

' Accordingly, the object of my invention generally stated is to provide a lighting unit which shall be of simple construction, economical to makeandwhichmay be easily and quickly installed.

. morespeciflc.objectgofmy invention is to provide a lighting unit for flush mounting which may be mounted without the use of separate mounting accessories or tools.

A further object of my invention is to provide for mounting alighting unit of the flush mounting type by utilizing fasteners integral with the reflector of the unit.

Another object of the invention is to provide for mounting a lighting unit of the flush mounting type by means of preformed portions of the reflector which may be bent over to hold the unit in position after it has been positioned in the mounting surface.

A further object of the invention is to provide a lighting unit for flush mounting in a ceiling or the like wherein the reflector is provided with a flanged rim. adapted to engage the edges of the ceiling opening and is further provided with pre-cut ears or knock-out members around the periphery thereof adjacent the rim which are adapted to be bent over to lock the unit in the ceiling opening.

These and other objects of my invention will become more apparent from the following detailed description when considered in connection with the drawing wherein:

Figure 1 is a partially sectioned elevational view of a lighting unit embodying the principal features of the invention; and,

Fig. 2 is an enlarged view of a portion of the unit of Fig. 1.

The preferred form of the lighting unit of the invention may comprise a bowl-shaped reflector formed of a suitable metal, such as aluminum, and. having a lamp socket mounted at the top thereof. The rim of the reflector is provided with an outwardly extending flange which engages the edges of the opening in the surface in which the unit is mounted. The unit is held in position by means of ears or knock-out members located around the reflector adjacent the rim. Before the unit is installed these ears are flush with the sides of the reflector but after the unit is inserted within the surface opening the ears are bent outwardly to clamp the supporting surface and thereby support the unit.

Referring now to the drawing, the unit illustrated represents a preferred embodiment of the E invention. It comprises generally a bowl-shaped reflector l0 having a dome portion II in which the socket l2 for a lamp l3 may be mounted in any suitable manner.

Te reflector I0 may be constructed of aluminum with an etched, polished or processed refleeting surface as desired.

v Any suitable lamp may be used in the unit such, for example as'a bowl-silvered lamp or a lamp provided with a detachable bowl reflector.

Since the unit is primarily intended for flush mounting in the ceiling or other supporting surface of a building, provisionis made for fastening the unit in the ceiling in a very simple manner that does not require the use of screws, clips or separate accessories of any kind.

As shown best in Fig. 2, the reflector is provided with a flange H on the rim thereof. This flange may be curved and formed integrally with the body of the reflector as shown, or it may be formed separately and attached to the edge of the reflector. Likewise, the flange may extend entirely around the reflector rim, which is the preferred construction or it may be sectionalized.

In order to mount the unit, an opening of substantially the same shape and size of the outside of the reflector is cut in the ceiling IS, the current conductors attached to the socket terminals and the unit inserted within the opening until the flange I4 engages the outside surface of the opening.

In order to lock the unit in position a plurality of ears or knock-outs l6 are precut in the body of the reflector adjacent the rim. As will be readily understood, these members may be readily bent outwardly into engagement with the top edge of the ceiling opening to clamp the ceiling material between them and the flange M, as shown in Fig.2. This looks the unit tightly in the position against the ceiling or other supporting surface.

The unit may be mounted in this manner in any kind of a ceiling or surface. In the event that the ceiling is of plaster construction and thick, a metal ceiling ring may be attached to the ceiling over the opening and the unit locked to the ring in the same manner.

In view of the foregoing, it is apparent that I have provided a very simple and cheap unit which may be readily mounted with a minimum of effort and time and without using tools, screws, clips or the like. These are important advantages where it is necessary to use a large number of units for a more or less temporary lighting installation which must be placed in operation in a short time.

While I have illustrated and described a speciflc embodiment of the invention, it is to be understood that all matter contained herein is merely illustrative and that certain changes may be made in the construction without departing from the spirit of the invention as defined in the appended claims.

I claim as my invention:

1. A lighting unit for flush mounting in an opening in a supporting surface comprising, a bowl-shaped reflector, a lamp socket mounted within the reflector, and means formed integral with the reflector disposed to be bent outwardly to engage the upper side of the supporting surface after the reflector has been positioned within the opening for supporting the unit within the opening in the supporting surface.

2. A lighting unit for flush mounting in an opening in a supporting surface comprising, a bowl-shaped reflector, a lamp socket mounted within the reflector and a plurality of preformed ears disposed in spaced relation in the reflector adjacent its rim adapted to be bent outwardly to engage the upper edges of the surface opening after the unit has been inserted therein.

3. A lighting unit for flush mounting in an opening in a supporting surface comprising, a

bowl-shaped reflector provided with a flanged rim, a lamp socket mounted in the reflector, and means formed integrally with the reflector adjacent its flanged rim adapted to be forced outwardly after the reflector has been inserted within the opening to cooperate with the flanged rim to support the unit.

4. A lighting unit for flush mounting in an opening in a supporting surface comprising, a bowl-shaped reflector provided with a flanged rim, a lamp socket mounted in the reflector and a plurality of ears precut in the reflector adjacent the flanged rim adapted to be bent outwardly and downwardly into engagement with the top of the supporting surface after the unit is inserted within the opening to support said unit with the flanged rim in engagement with the lower side of the supporting surface.

5. A lighting unit for flush mounting within an opening in a supporting surface comprising, a bowl-shaped aluminum reflector, a lamp socket mounted in the reflector, and a plurality of preformed ears disposed ,around the reflector adjacent the edge thereof adapted to be bent outwardly and downwardly after the reflector has been positioned within the opening to engage the upper edge of the opening in the supporting surface to support the unit.

6. A lighting unit for flush mounting within an opening in a supporting surface comprising, a bowl-shaped aluminum reflector, a lamp socket mounted in the reflector, said reflector having a curved flange disposed about the rim thereof adapted to engage the edge of the opening into which the unit is inserted, and a plurality of ears formed in the reflector adjacent the rim adapted to bebent outwardly and downwardly when the unit is positioned within the opening to support the unit therein by clamping the supporting surface between said curved flange and ears.

FREDERIC C. WINKLER. 

